Addition- Index
Placement Test
Unit 1

Adding One-Place Numbers

Unit 2

Adding Two-Place Numbers

Unit 3

Adding Three and Four-Place Numbers

Unit 4

Adding Three or More Numbers

Unit 5

Carrying Over Numbers

Unit 6

Adding Money and Problem-Solving

Unit 3: Adding Three and Four-Place Numbers

  • Introduction Adding Three and Four-Place Numbers01:36
  • 32Adding Three-Place Numbers(1 of 2)01:02
  • 32Adding Three-Place Numbers(2 of 2)02:01
  • 34Problem-Solving01:34
  • 35Four-Place Numbers02:02
  • 35Adding Four-Place Numbers02:11
  • 36Adding Four-Place Numbers(1 of 2)01:31
  • 36Adding Four-Place Numbers(2 of 2)02:16
  • 37Problem-Solving02:05
  • 38Review: Adding Two to Four-Place Numbers01:13
Addition-Four-Place Numbers

Horses for sale: to purchase two riding horses. The white horse costs $1,250 and the black and white one costs $1,425.00. How much do both horses cost? Write out the number.